How to export symbol in kernel?

["Zhen Liu" <zliu@CSE.MsState.EDU>]

Hi, all

 

How can I export symbol in a patch for kernel?

 

what I was doing is:

I add the extern function in .h

I include the .h in kernel/ksyms.c

and use EXPORT_SYMBOL(***);

 

Though I can find the symbol name in /proc/ksyms, it seems something wrong, since I cannot use it in my module.

 

Appreciate for any help.

 

zhen liu